Let ‘h’ be the height of the ladder AB, as shown in the figure above.
Sin 80= h/20, which means h= 20 Sin80
= 20(0.9848)
= 19.696 ft Answer
Let ‘h’ be the height of the ladder AB, as shown in the figure above.
Sin 80= h/20, which means h= 20 Sin80
= 20(0.9848)
= 19.696 ft Answer